Why is it so hard to answer a yes or no question. Is Vattel in the Constitution? I read the Constitution and I don’t see “Vattel” in there or “Law of Nations” in there. I see a very ambiguous phrase “natural born citizen” in there, and that tells me that one needs to go to external sources to try and divine what meaning, if any, that term has - i.e., is it some sort of term of art - and for that sources such as Vattel are persuasive only, they are not authoritative.
My loyalty lies with the Constitution, first and always. Why does your loyalty lie first with Vattel?
Because VatteThe Framers DREW UPON Vattel’s authority ti WRITE the constitution. I>E> Vattel existed BEFORE the Constitution and his works were referenced by the founders. Can you understand that? And Vattel IS in the Constitution AND the Declaration of independence. Vattel IS the EXTERNAL SOURCE from which certain sections were derived.
Obviously your loyalty DOES NOT lie with the Constitution because you are trying your damndest to change it.